first time chicken owner

hey,
i just got 6 baby chicks at the state fair on an impulse. But now 4 of them have those little things on their heads. they are about 3 weeks old, and its been 3 days since we first noticed them and they are startng to turn reddish. So i really just want to know if i have 4 roosters and only 2 hens, because i don't think that i can just keep 2 hens.

Also, we were planning on making our old playhouse in to the chicken coop, but it desnt have electricity or heat and we live in NJ. So for the winter do i need to get electricity or heat installed?
thanks.

Hi!
Do you know what breed of chicken they are? I also live in NJ and if the breed is cold weather hardy you should not have too much of a problem. If their combs are large you may want to put some vaseline on them to prevent frostbite. We have an unheated coop, but ours is insulated. The most important thing about the cold weather is that you must make sure the water is not frozen. BTW, why can you not keep just two hens?

hey thanks everyone.
im bummed that those 4 are roosters. is it possible to just have 2 chickens? ive read that you have to have atleast 4 since they are flock animals.
also, dont chickens have those comb things anyways? so can any of the 4 with the things be hens?